Alert archive / New Jersey / Tornado Warnings in 2021
Tornado Warning 32, NWS Philadelphia/Mount Holly
NWS Philadelphia/Mount Holly issued this tornado warning at Aug 19, 2021, 12:48 AM EDT for Hunterdon County, New Jersey; Bucks County, Pennsylvania. It was in force for 27 min. No storm report in the archive falls inside the area while it was in force.
The area
The outline as issued.
The facts
- Issued
- Aug 19, 2021, 12:48 AM EDT (04:48 UTC)
- Expired
- Aug 19, 2021, 1:15 AM EDT
- In force
- 27 min
- Issued by
- NWS Philadelphia/Mount Holly
- Area
- Storm-based polygon
- Tornado
- Radar indicated
- Hail
- 0.75 in
Counties Hunterdon County, NJ, Bucks County, PA
The radar
The Philadelphia radar (KDIX), 90 km from the middle of the area, began a volume at 04:48 UTC, the scan nearest the moment this went out.
Open the radar archive at this moment
The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.
The nearest sounding before it
Brookhaven, NY (KOKX), launched 00:00Z, 4.8 hours before the alert went out and 191 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.
- Mixed-layer CAPE
- 491 J/kg
- Mixed-layer CIN
- -11 J/kg
- Mixed-layer LCL
- 580 m above ground
- 0-6 km bulk shear
- 21 kt
- 0-1 km storm-relative helicity
- 62 m²/s²
- 0-3 km storm-relative helicity
- 103 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
662
WFUS51 KPHI 190448
TORPHI
NJC019-PAC017-190515-
/O.NEW.KPHI.TO.W.0032.210819T0448Z-210819T0515Z/
BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service Mount Holly NJ
1248 AM EDT Thu Aug 19 2021
The National Weather Service in Mount Holly NJ has issued a
* Tornado Warning for...
West central Hunterdon County in northwestern New Jersey...
North central Bucks County in southeastern Pennsylvania...
* Until 115 AM EDT.
* At 1247 AM EDT, a severe thunderstorm capable of producing a
tornado was located over Bedminster, or 17 miles south of Easton,
moving northeast at 35 mph.
HAZARD...Tornado.
SOURCE...Radar indicated rotation.
IMPACT...Flying debris will be dangerous to those caught without
shelter. Mobile homes will be damaged or destroyed.
Damage to roofs, windows, and vehicles will occur. Tree
damage is likely.
* Locations impacted include...
Bedminster, Ferndale, Frenchtown, Milford, Bloomsbury, Erwinna,
Revere and Ottsville.
This includes Interstate 78 in New Jersey between mile markers 7 and
8, and near mile marker 10.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
TAKE COVER NOW! Move to a basement or an interior room on the lowest
floor of a sturdy building. Avoid windows. If you are outdoors, in a
mobile home, or in a vehicle, move to the closest substantial shelter
and protect yourself from flying debris.
Heavy rainfall may hide this tornado. Do not wait to see or hear the
tornado. TAKE COVER NOW!
Tornadoes are extremely difficult to see and confirm at night. Do not
wait to see or hear the tornado. TAKE COVER NOW!
&&
LAT...LON 4061 7492 4040 7520 4042 7527 4061 7517
4063 7515 4067 7507
TIME...MOT...LOC 0447Z 212DEG 30KT 4044 7520
TORNADO...RADAR INDICATED
MAX HAIL SIZE...<.75 IN
$$
Meola1 follow-up statement
722
WWUS51 KPHI 190502
SVSPHI
Severe Weather Statement
National Weather Service Mount Holly NJ
102 AM EDT Thu Aug 19 2021
NJC019-PAC017-190515-
/O.CON.KPHI.TO.W.0032.000000T0000Z-210819T0515Z/
Hunterdon NJ-Bucks PA-
102 AM EDT Thu Aug 19 2021
...A TORNADO WARNING REMAINS IN EFFECT UNTIL 115 AM EDT FOR WEST
CENTRAL HUNTERDON AND NORTH CENTRAL BUCKS COUNTIES...
At 102 AM EDT, a severe thunderstorm capable of producing a tornado
was located over Milford, or 11 miles southeast of Easton, moving
northeast at 35 mph.
HAZARD...Tornado.
SOURCE...Radar indicated rotation.
IMPACT...Flying debris will be dangerous to those caught without
shelter. Mobile homes will be damaged or destroyed. Damage
to roofs, windows, and vehicles will occur. Tree damage is
likely.
Locations impacted include...
Frenchtown, Milford, Bloomsbury and Erwinna.
This includes Interstate 78 in New Jersey mile marker 8 and near mile
marker 10.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
TAKE COVER NOW! Move to a basement or an interior room on the lowest
floor of a sturdy building. Avoid windows. If you are outdoors, in a
mobile home, or in a vehicle, move to the closest substantial shelter
and protect yourself from flying debris.
Heavy rainfall may hide this tornado. Do not wait to see or hear the
tornado. TAKE COVER NOW!
Tornadoes are extremely difficult to see and confirm at night. Do not
wait to see or hear the tornado. TAKE COVER NOW!
Torrential rainfall is occurring with this storm, and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.
&&
LAT...LON 4062 7495 4050 7507 4055 7518 4067 7507
TIME...MOT...LOC 0502Z 212DEG 30KT 4055 7511
TORNADO...RADAR INDICATED
MAX HAIL SIZE...0.00 IN
$$
MeolaThe office that day
Everything else NWS Philadelphia/Mount Holly issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 18, 11:19 PM EDT | Areal Flood Advisory | PHI | Warren | 3 hr |
| Aug 19, 1:32 AM EDT | Small Craft Advisory | PHI | 5 hr | |
| Aug 19, 2:05 AM EDT | Areal Flood Advisory | PHI | Hunterdon, Mercer, Morris, Somerset | 3 hr |
| Aug 19, 2:13 AM EDT | Flash Flood Warning | PHI | Burlington, Camden, Mercer | 4 hr |
| Aug 19, 2:33 AM EDT | Tornado Warning | PHI | Morris | 27 min |
| Aug 19, 2:40 AM EDT | Tornado Warning | PHI | Morris | 24 min |
| Aug 19, 3:09 AM EDT | Tornado Warning | PHI | Mercer, Middlesex, Monmouth | 36 min |
| Aug 19, 6:09 AM EDT | Areal Flood Warning | PHI | Mercer | 3 hr |
| Aug 18, 8:53 PM EDT | Areal Flood Advisory | PHI | Berks | 3 hr |
| Aug 18, 9:10 PM EDT | Areal Flood Advisory | PHI | Lehigh, Monroe, Northampton | 3 hr |
| Aug 18, 9:30 PM EDT | Flash Flood Warning | PHI | Berks | 2 hr |
| Aug 18, 9:35 PM EDT | Areal Flood Advisory | PHI | Berks, Lehigh | 3 hr |
| Aug 18, 9:45 PM EDT | Areal Flood Advisory | PHI | Berks | 3 hr |
| Aug 18, 9:47 PM EDT | Special Weather Statement | PHI | Berks | 58 min |
| Aug 18, 10:16 PM EDT | Flash Flood Warning | PHI | Berks, Lehigh | 3 hr |
| Aug 18, 10:44 PM EDT | Flash Flood Warning | PHI | Lehigh, Monroe, Northampton | 4 hr |
| Aug 18, 10:50 PM EDT | Flash Flood Warning | PHI | Bucks, Chester, Montgomery | 4 hr |
| Aug 18, 11:19 PM EDT | Special Weather Statement | PHI | Bucks, Chester, Montgomery | 41 min |
| Aug 18, 11:47 PM EDT | Flash Flood Warning | PHI | Chester | 2 hr |
| Aug 19, 12:04 AM EDT | Special Weather Statement | PHI | Bucks, Delaware, Montgomery | 71 min |
| Aug 19, 12:26 AM EDT | Tornado Warning | PHI | Bucks, Montgomery | 34 min |
| Aug 19, 12:31 AM EDT | Flash Flood Warning | PHI | Bucks, Chester, Delaware, Montgomery | 4 hr |
| Aug 19, 12:44 AM EDT | River Flood Warning | PHI | Chester | 5 hr |
| Aug 19, 12:47 AM EDT | Tornado Warning | PHI | Chester, Delaware, Montgomery, Philadelphia | 28 min |
| Aug 19, 1:14 AM EDT | Special Weather Statement | PHI | Bucks, Delaware, Philadelphia | 91 min |
| Aug 19, 1:30 AM EDT | Flash Flood Warning | PHI | Bucks, Delaware, Montgomery, Philadelphia | 4 hr |
| Aug 19, 4:33 AM EDT | Areal Flood Warning | PHI | Chester, Delaware | 4 hr |
| Aug 19, 8:50 AM EDT | Areal Flood Warning | PHI | Montgomery, Philadelphia | 3 hr |
| Aug 19, 10:40 AM EDT | Areal Flood Warning | PHI | Delaware | 3 hr |
Nearby
Tornado Warnings in New Jersey, 2021Tornado Warnings in Pennsylvania, 2021Every tornado warning in 2021Tornadoes in 2021
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.